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47DAC OPERATING MANUAL EM-9518-B Rev.4
11. ADVANCED ALARM SETTING
Advanced alarm operation can be set. You can configure parameters as shown in Tables 1 and 2. Figures 1 to 4 show
alarm examples.
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TABLE 1: ADVANCED ALARM OUTPUT PARAMETERS
PARAMETER
FUNCTION
P output
Alarm outputs are normally assigned to the LL, L, H and HH alarms and there is not an output
for the P status. However the P output can be assigned to an output instead of one of the
alarm points (Figure 1).
Latching alarm
The alarm output ON except for the P output can be held (Figure 2). Whether the output is
held with the display reading continued to accept measured values, or both output and read-
ing are held, can be selected.
In order to reset the latching, set the latching alarm to “no latching”, turn off the power and
restart, or provide the RESET signal.
Alarm power ON delay
The measuring can begin after waiting for the delay time from power on (Figure 3).
Standby sequence
The outputs can stand by until the input enters P zone from power on (Figure 4).
Scaling error
An alarm trip when ‘S.ERR’ is indicated can be set.
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TABLE 2: SETTING VALUES
PARAMETER
MAIN DISPLAY
FUNCTION
DEFAULT VALUE
P output
No P output
Alarm setpoint LL
Alarm setpoint L
Alarm setpoint H
Alarm setpoint HH
Latching alarm
No latching
Output latched / measuring continued
Output latched / measuring stopped
Alarm power ON delay
to
0.0 – 999.9 seconds
Standby sequence
Output immediately at the startup
Output standing by until the input enters P zone
Scaling error
Alarm trip action valid at over-range
No alarm trip action at over-range
